Is Vermiculite Dangerous, Vermiculite Insulation Asbestos Hazards Youtube

I know many permies use vermiculite when gardening and as insulation for rmhaccording to this talk it seems vermiculite is a dangerous health hazard a toxic form of asbestos and therefore not very green.

Mesothelioma news. And how can you tell if its present in your building. Therefore you must use safety gear before putting the insulation into bags. Vermiculite forms by the weathering or hydrothermal alteration of biotite or phlogopite.

Theres no firm cut off date for asbestos contaminated insulation. But some people might. Between the 1920s and early 1990s contained small yet dangerous quantities of asbestosthe vermiculite insulation used in homes built during this period and sometimes marketed under the trade name zonolite typically contains 1 3 percent asbestos.

Exfoliation occurs when the mineral is heated sufficiently and commercial furnaces can routinely produce this effect. Youre probably familiar with this mica like mineral as a potting mix additive. Vermiculite is a naturally occurring silicate material that expands significantly when exposed to heat.

Vermiculite has many uses from insulation to swimming pools. The asbestos fibres found in vermiculite from the libby mine are friable fibres of amphibole asbestos. Testing is expensive and inaccurate and the probability of asbestos contamination is so great that the epa recommends erring on the side of caution rather than testing for asbestos.

Its also a ph neutral way to add calcium and magnesium. Large commercial vermiculite mines currently exist in the united states of america. If you discover dangerous vermiculite in the home of your client their first question may be about removal.

If you are going to replace your vermiculite insulation you must take certain safety precautions. While the idea of living in a home insulated with asbestos laden vermiculite might be upsetting its important that homeowners not to disturb the hazardous substance. Once vermiculite is disturbed millions of asbestos fibers become airborne.

Vermiculite is a hydrous phyllosilicate mineral which undergoes significant expansion when heated. What exactly is vermiculite. Consider this statement from research titled zonolite attic insulation exposure studies where even the suggested method for removal by the manufacturer.

Vermiculite from libby was primarily sold as zonolite attic insulation in canada. Most of the vermiculite used for insulation in the us. So to be safe treat all vermiculite insulation as if it contains asbestos.

Vermiculite insulation granules assume asbestos contamination. It breaks up the soil providing better aeration and it retains water and fertilizer. Weve compiled all the information youll need to answer these questions and more.

The asbestos found in vermiculite is extremely friable and is the most dangerous type amphibole of asbestos.